The Economist’s “Johnson” language blog has an interview with linguist K. David Harrison (see this LH post from last year), in which he has interesting things to say about languages and their preservation; here’s one snippet:
In indigenous cultures we observe the decline of languages and lifeways occurring in parallel. There’s an astonishing book called “Watching Ice and Weather Our Way,” co-authored by Yupik elders and scientists. In it, the Yupik elders describe, define and draw sketches of 99 distinct types of sea ice formations which their language gives specific names to.
Their climate science astounds with its precision, predictive power, and depth of observation. Modern climate scientists have much to learn from it. As the Arctic ice melts, and new technologies like snowmobiles advance, Yupik ice-watching becomes the passion of the elderly few. Their knowledge of ice, their words for it, and the hunting skills and lifeways are all receding in tandem with the Yupik language itself.